12601642069 has 2 divisors, whose sum is σ = 12601642070. Its totient is φ = 12601642068.

The previous prime is 12601641979. The next prime is 12601642091. The reversal of 12601642069 is 96024610621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6370434225 + 6231207844 = 79815^2 + 78938^2 .

It is an emirp because it is prime and its reverse (96024610621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12601642069 - 2¹⁵ = 12601609301 is a prime.

It is a super-2 number, since 2×12601642069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12601642969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6300821034 + 6300821035.

It is an arithmetic number, because the mean of its divisors is an integer number (6300821035).

Almost surely, 2^12601642069 is an apocalyptic number.

It is an amenable number.

12601642069 is a deficient number, since it is larger than the sum of its proper divisors (1).

12601642069 is an equidigital number, since it uses as much as digits as its factorization.

12601642069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 12601642069 in words is "twelve billion, six hundred one million, six hundred forty-two thousand, sixty-nine".